Pittsburgh
Parkway Multiplexes

I-279(N-S)/Truck
US 19(N-S)/US 22(E-W)/US
30(E-W) Quadruplex

The I-279/Truck US 19 and US
22/US 30 duplexes join for a mile through Pittsburgh in Allegheny
County. The southern half mile of the quadruplex is joined by US
19 in the state's only quintuplex.

Jeff Kitsko 11/7/03

Southbound on I-279/Truck US 19 nearing the south end of Parkway
North. The left exit leads to I-376/US
22/US 30 east.

Denny Pine 2003

Southbound on I-279/Truck US 19 (Parkway North) at the interchange
with I-376/US 22/US 30 (Parkway
East). Straight ahead then is I-279/Truck US 19/US 22/US 30 (Parkway
West). I-376 ends at the left, and US 22/US 30 merges with I-279/Truck
US 19 as the expressway climbs over the Monongahela River on the Fort
Pitt Bridge.

Denny Pine 2003

In the other direction, I-279/Truck US 19 north splits from US
22/US 30 east and I-376 east begins at the north end of the Fort
Pitt Bridge.

I-279(N-S)/Truck
US 19(N-S) Duplex

Interstate 279 and United States Truck Route 19 join for six miles
through Pittsburgh in Allegheny County. The northern 5 miles are covered
here. The southern mile of the duplex is joined by US
22/US 30 for a quadruplex and partly by US
19 for a quintuplex.

Denny Pine 2003

Southbound on Truck US 19/McKnight Road where Truck US 19 exits to
join I-279 south. That exit is just ahead at the overpass. The foreground
guide sign clarifies the routing of Truck US 19, which gets little
mention along the 6-mile multiplex as the minor route with I-279 and
US 22/US 30.